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Official Description

Litholapaxy: crushing or fragmentation of calculus by any means in bladder and removal of fragments; simple or small (less than 2.5 cm)

© Copyright 2026 American Medical Association. All rights reserved.

Common Language Description

Litholapaxy, as defined by CPT® Code 52317, is a medical procedure aimed at the treatment of bladder stones, specifically those that are classified as simple or small, measuring less than 2.5 cm in size. During this procedure, a scope is introduced into the bladder, allowing for direct visualization of the stone. The primary goal of litholapaxy is to effectively remove the stone by employing various means of fragmentation. This is achieved through the insertion of a crushing instrument, a mechanical disintegration probe, or a laser, which is passed through the urethra and into the bladder. The stone is systematically broken down into smaller fragments, facilitating their removal. Once the stone has been adequately fragmented, an evacuation catheter is inserted through the urethra into the bladder to assist in the removal of the stone fragments. The bladder is then irrigated with sterile saline or another suitable solution to flush out the disintegrated stone pieces. Following the irrigation, the bladder is re-examined using the scope to confirm that all fragments have been successfully pulverized and expelled. It is important to note that for more complex cases involving larger stones exceeding 2.5 cm, CPT® Code 52318 should be utilized instead of 52317.

© Copyright 2026 Coding Ahead. All rights reserved.

1. Indications

The procedure of litholapaxy (CPT® Code 52317) is indicated for the treatment of bladder stones that are classified as simple or small, specifically those measuring less than 2.5 cm. The presence of these stones can lead to various urinary symptoms and complications, necessitating their removal. Indications for performing this procedure may include:

  • Bladder Stones The primary indication for litholapaxy is the presence of calculi within the bladder that require removal to alleviate symptoms and prevent further complications.
  • Urinary Obstruction Stones can cause obstruction in the urinary tract, leading to difficulty in urination, which may necessitate intervention.
  • Recurrent Urinary Tract Infections The presence of bladder stones can contribute to recurrent infections, making their removal essential for patient health.

2. Procedure

The litholapaxy procedure involves several critical steps to ensure the effective fragmentation and removal of bladder stones. The steps are as follows:

  • Step 1: Scope Insertion The procedure begins with the insertion of a cystoscope into the bladder through the urethra. This allows the physician to visualize the stone directly and assess its size and location.
  • Step 2: Fragmentation of the Stone Once the stone is visualized, a crushing instrument, mechanical disintegration probe, or laser is introduced through the cystoscope. The physician then applies the chosen method to fragment the stone into smaller pieces, ensuring that the fragments are manageable for removal.
  • Step 3: Evacuation of Fragments After the stone has been adequately fragmented, an evacuation catheter is inserted through the urethra into the bladder. This catheter is used to remove the smaller stone fragments from the bladder.
  • Step 4: Irrigation The bladder is irrigated with sterile saline or another appropriate solution to assist in flushing out any remaining stone fragments. This step is crucial for ensuring that all pieces are cleared from the bladder.
  • Step 5: Final Inspection Following irrigation, the bladder is re-inspected using the cystoscope to confirm that all stone fragments have been successfully pulverized and removed. This final check is essential to ensure complete clearance and prevent recurrence.

3. Post-Procedure

After the litholapaxy procedure, patients may experience some discomfort, which is typically managed with appropriate pain relief. It is important for patients to follow post-procedure care instructions, which may include hydration to facilitate the passage of any remaining fragments and monitoring for any signs of complications, such as infection or bleeding. Follow-up appointments may be scheduled to ensure proper recovery and to assess for any recurrence of bladder stones. Patients should be advised to report any unusual symptoms, such as persistent pain or changes in urination, to their healthcare provider promptly.

Short Descr REMOVE BLADDER STONE
Medium Descr LITHOLAPAXY SMPL/SM <2.5 CM
Long Descr Litholapaxy: crushing or fragmentation of calculus by any means in bladder and removal of fragments; simple or small (less than 2.5 cm)
Status Code Active Code
Global Days 000 - Endoscopic or Minor Procedure
PC/TC Indicator (26, TC) 0 - Physician Service Code
Multiple Procedures (51) 3 - Special payment adjustment rules for multiple endoscopic procedures apply.
Bilateral Surgery (50) 0 - 150% payment adjustment for bilateral procedures does NOT apply.
Physician Supervisions 09 - Concept does not apply.
Assistant Surgeon (80, 82) 1 - Statutory payment restriction for assistants at surgery applies to this procedure...
Co-Surgeons (62) 0 - Co-surgeons not permitted for this procedure.
Team Surgery (66) 0 - Team surgeons not permitted for this procedure.
Endoscopic Base Code 52000  Cystourethroscopy (separate procedure)
Diagnostic Imaging Family 99 - Concept Does Not Apply
APC Status Indicator Hospital Part B services paid through a comprehensive APC
ASC Payment Indicator Surgical procedure on ASC list in CY 2007; payment based on OPPS relative payment weight.
Type of Service (TOS) 2 - Surgery
Berenson-Eggers TOS (BETOS) P8E - Endoscopy - cystoscopy
MUE 1
CCS Clinical Classification 112 - Other OR therapeutic procedures of urinary tract
51 Multiple procedures: when multiple procedures, other than e/m services, physical medicine and rehabilitation services or provision of supplies (eg, vaccines), are performed at the same session by the same individual, the primary procedure or service may be reported as listed. the additional procedure(s) or service(s) may be identified by appending modifier 51 to the additional procedure or service code(s). note: this modifier should not be appended to designated "add-on" codes (see appendix d).
GC This service has been performed in part by a resident under the direction of a teaching physician
59 Distinct procedural service: under certain circumstances, it may be necessary to indicate that a procedure or service was distinct or independent from other non-e/m services performed on the same day. modifier 59 is used to identify procedures/services, other than e/m services, that are not normally reported together, but are appropriate under the circumstances. documentation must support a different session, different procedure or surgery, different site or organ system, separate incision/excision, separate lesion, or separate injury (or area of injury in extensive injuries) not ordinarily encountered or performed on the same day by the same individual. however, when another already established modifier is appropriate it should be used rather than modifier 59. only if no more descriptive modifier is available, and the use of modifier 59 best explains the circumstances, should modifier 59 be used. note: modifier 59 should not be appended to an e/m service. to report a separate and distinct e/m service with a non-e/m service performed on the same date, see modifier 25.
XU Unusual non-overlapping service, the use of a service that is distinct because it does not overlap usual components of the main service
SG Ambulatory surgical center (asc) facility service
XS Separate structure, a service that is distinct because it was performed on a separate organ/structure
22 Increased procedural services: when the work required to provide a service is substantially greater than typically required, it may be identified by adding modifier 22 to the usual procedure code. documentation must support the substantial additional work and the reason for the additional work (ie, increased intensity, time, technical difficulty of procedure, severity of patient's condition, physical and mental effort required). note: this modifier should not be appended to an e/m service.
52 Reduced services: under certain circumstances a service or procedure is partially reduced or eliminated at the discretion of the physician or other qualified health care professional. under these circumstances the service provided can be identified by its usual procedure number and the addition of modifier 52, signifying that the service is reduced. this provides a means of reporting reduced services without disturbing the identification of the basic service. note: for hospital outpatient reporting of a previously scheduled procedure/service that is partially reduced or cancelled as a result of extenuating circumstances or those that threaten the well-being of the patient prior to or after administration of anesthesia, see modifiers 73 and 74 (see modifiers approved for asc hospital outpatient use).
53 Discontinued procedure: under certain circumstances, the physician or other qualified health care professional may elect to terminate a surgical or diagnostic procedure. due to extenuating circumstances or those that threaten the well being of the patient, it may be necessary to indicate that a surgical or diagnostic procedure was started but discontinued. this circumstance may be reported by adding modifier 53 to the code reported by the individual for the discontinued procedure. note: this modifier is not used to report the elective cancellation of a procedure prior to the patient's anesthesia induction and/or surgical preparation in the operating suite. for outpatient hospital/ambulatory surgery center (asc) reporting of a previously scheduled procedure/service that is partially reduced or cancelled as a result of extenuating circumstances or those that threaten the well being of the patient prior to or after administration of anesthesia, see modifiers 73 and 74 (see modifiers approved for asc hospital outpatient use).
58 Staged or related procedure or service by the same physician or other qualified health care professional during the postoperative period: it may be necessary to indicate that the performance of a procedure or service during the postoperative period was: (a) planned or anticipated (staged); (b) more extensive than the original procedure; or (c) for therapy following a surgical procedure. this circumstance may be reported by adding modifier 58 to the staged or related procedure. note: for treatment of a problem that requires a return to the operating/procedure room (eg, unanticipated clinical condition), see modifier 78.
74 Discontinued out-patient hospital/ambulatory surgery center (asc) procedure after administration of anesthesia: due to extenuating circumstances or those that threaten the well being of the patient, the physician may terminate a surgical or diagnostic procedure after the administration of anesthesia (local, regional block(s), general) or after the procedure was started (incision made, intubation started, scope inserted, etc). under these circumstances, the procedure started but terminated can be reported by its usual procedure number and the addition of modifier 74. note: the elective cancellation of a service prior to the administration of anesthesia and/or surgical preparation of the patient should not be reported. for physician reporting of a discontinued procedure, see modifier 53.
78 Unplanned return to the operating/procedure room by the same physician or other qualified health care professional following initial procedure for a related procedure during the postoperative period: it may be necessary to indicate that another procedure was performed during the postoperative period of the initial procedure (unplanned procedure following initial procedure). when this procedure is related to the first, and requires the use of an operating/procedure room, it may be reported by adding modifier 78 to the related procedure. (for repeat procedures, see modifier 76.)
79 Unrelated procedure or service by the same physician or other qualified health care professional during the postoperative period: the individual may need to indicate that the performance of a procedure or service during the postoperative period was unrelated to the original procedure. this circumstance may be reported by using modifier 79. (for repeat procedures on the same day, see modifier 76.)
80 Assistant surgeon: surgical assistant services may be identified by adding modifier 80 to the usual procedure number(s).
AG Primary physician
AQ Physician providing a service in an unlisted health professional shortage area (hpsa)
AS Physician assistant, nurse practitioner, or clinical nurse specialist services for assistant at surgery
CC Procedure code change (use 'cc' when the procedure code submitted was changed either for administrative reasons or because an incorrect code was filed)
CR Catastrophe/disaster related
GV Attending physician not employed or paid under arrangement by the patient's hospice provider
GW Service not related to the hospice patient's terminal condition
LT Left side (used to identify procedures performed on the left side of the body)
Q1 Routine clinical service provided in a clinical research study that is in an approved clinical research study
Q6 Service furnished under a fee-for-time compensation arrangement by a substitute physician or by a substitute physical therapist furnishing outpatient physical therapy services in a health professional shortage area, a medically underserved area, or a rural area
RT Right side (used to identify procedures performed on the right side of the body)
TV Special payment rates, holidays/weekends
XE Separate encounter, a service that is distinct because it occurred during a separate encounter
Date
Action
Notes
2013-01-01 Changed Medium Descriptor changed.
Pre-1990 Added Code added.
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